Toyota SD - Needle Threader

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Adjustment of respective parts
11.Needle threader
Needle threader height
[Condition]
Needle: # 11 to # 16
[Diagnosis]
1. When the needle bar is brought to the upper
dead point by turning the handweel, check
the movement of needle threader lever by
pressing it down.(Fig. 1)
[Standard]
Threader hook must pass through the needle
hole without smoothly. (Fig. 1)
* Make adjustment if the diagnosis result fails to
meet the standard.
[Adjustment]
1. Remove the face cover to see the adjusting
section. (See:page.45)
2. Loosen the threader arm set screw, adjust the
height of threader arm.(Fig. 1)
* Repeat the adjustment till the standard is met.
Bent threader hook
[Diagnosis]
1. Check the shape of threader hook.(Fig. 2)
[Standard]
Threader hook should not be bent. (Fig. 2)
* Make adjustment if the diagnosis result fails to
meet the standard.
[Adjustment]
1. Straighten the threader hook using a screw-
driver or the like, so that hook can pass
through the needle hole smoothly.
2. If the bent cannot be corrected properly,
replace the threader hook.
* Repeat the adjustment till the standard is met.